personally dont like fully tiled bathrooms as feel they can be quite cold and you will be looking at them for a long time as other posters have said.
3 bathrooms with the same cream tile 30cm * 10cm and glass mosaic tiles in between. Cream walls in wipeable vinyl paint in all bathrooms.
Downstairs bathroom we have bath with shower head attached, tiled to the same height as the window on two walls around the bath with red glass tiles through the cream tiles. Tiled 4 tiles high over the sink(horizontally).
upstair bathroom, no shower yet but bath in the eaves, just plain cream tiles 4 high around bath and sink, no glass mosaic tiles used as couldnt decide on a colour, will brighten it up with accessories when we actually start to use, gotta toilet train the small man first.
Ensuite, same cream tiles and mint glass mosaic tiles in shower area and 3 high tiles over sink.
looks cool and fresh, but not cold.
was going to tile all bathrooms fully, but sis got hers done and a friend tiled theirs fully, and its just got a cold feel and is cold.
Only in house 4 months but no probs with this setup, did live in a house with similar setup before but no tiles over tile, that was a pain with toothpaste and splashbacks.